Furnace-tiling.



No. 65|,45|. lPatented lune I2, |900.

H. G. TIDEMANN.

FURNA-CE v TILING.

mation med sepa. 25, 1899 Nirn STATES PATENT OFFICE.'

HENRY G. TIDEMANN, ST. LOUIS, MISSOURI.

FURNACE-KTILING.

SPECIFICATION forming part of Letters Patent No.651,451, dated .T une 12, 1900.

Application tiled September 25, 1899. Serial No. 731,644.. (No model.)

T0 @ZZ whom, t may concern: Y

Be it known that I, HENRY G. TIDEMANN,

a citizen of the United States, residing at the city of St. Louis, State of Missouri, have invented a certain new and useful Improvement in Furnace-Tiling, of which the following is a full, clear, and exact description', such as will enable others skilled in the art to which it appertains to make and use the same, ref` crence being hadto the accompanyingdrawings, forming part of this speciiication, in which- Figure l is a sectional view through three tion to the escaping products of combustion,

so that said products of combustion will traverse the tubes to the best advantage.

The objects of the invention are to provide tiling of the character described composed of separate pieces designed to be individually introduced or removed from their position between the tubes, so that th'e water-tubes and the tiling supported thereby may expand and contract independently, and should one or more of said tiles in a longitudinal series be broken the other tiles of that series may be moved longitudinally the tubes to iill upl the gaps at the end of the series to makethe.

line of the desired length.

With these objects in view the invention consists of a furnace-tile provided with a deep :recess in one side to receive and cooperate with a water-tube, the body portion of said tile spanning the spacebetween two tubes and cooperating with an adjacent tube, whereby said tile may be tilted or canted, so that its bodyportion will pass through the space between two tubes, after which the deep recess in the inside thereof. receives one of the tubes, and the tile is rotated thereon until its body portion rests upon the next adjacent l tube, filling the space between two tubes and being supported firmly in position meanwhile,

karranged to form straight series, the tubes of each series being staggered with relation to the tubes of the series thereabove or theren below. My improved form of tile is adapted to cooperate with one or more of such horizontal series of tubes to form a diaphragm or diaphragms by lilling the spaces between said series of tubes, say at one end thereof, to prevent the products of combustion 'from passing between the tubes at the place occupied by the tiling.

My improved tiling may be made of fireclay or asbestos-board, or a mixture of the two, or any suitable refractory material.

` The tiling consists of separate bricks or tiles B, having a body portion somewhat elongated. The upper face of this body portion may be straight, as shown in Fig. l, or recessed, as at a, Fig. '3, for the purpose of lightening the same. O indicates a curved projection extendinglaterally from one of the lower corners of the body portion, which, together wit-h the overhanging upper edge b of the body portion, forms a recess adapted to receive one of the water-tubes, the greater portion of said recess being concentric 'with the diameter of the tube, as shown in Figs. l and 3, while the outer extremityof said recess is described from a circle having a larger radius.- The opposite side of the body por-` tion is provided with an overhanging recess b' on its upper edge, said side face below said overhanging portion being curved concentrically with the diameter of the Water-tube with which it cooperates until it reaches the lower corner or end of the body portion b. The under surface of the body portion blends IOC into the under surface of the lateral projection, preferably by a curved line forming a recess b", into which a water-tube is received when a tile is being introduced into or removed from position.

In placing the tile in position it maybe introduced from above or below into the space between two tubes and rotated on one of the tubes until its overhanging portions b and b rest on the upper surface of the tubes and support the tile in place. In introducing tiles from' beneath the start is preferably made at the left-hand side of the furnace, where one or more tiles are placed into position in the first space between two tubes, the transverse series being built up then toward the right-hand side of the boiler. In introducing a tile from beneath the bod yportion is slipped into the space between two tubes until one of said tubes, say the one to the right of said space, is in position to be received by the recess b". The tile is now rotated upwardly on said tube until the corner or overhanging portion b passes the tube at the left of the space, when the tile may be moved laterally, so as to embrace said tube at the left in its recess formed by the lateral projection C, after which the tile is moved on said tube until its corner b is free to slip over the tube at the right of the space into which the tile is introduced until the overhan gin g portion b' rests upon the tube at the right. \Vhen the next tile in that transverse series is introduced, it is placed into the next space to the right in the same manner, the final rotation of the tile bringing the outer end of the curved lateral projection C against the under face of the body portion of the next adjacent tile to the left. The transverse series is then built up, each tile being separately introduced and independently movable, so asto expand and contract of themselves under varying temperatures and permit independent expansion and contraction of the tubes. The ltiles of a transverse series, by reason of the lateral projection C extending practically under half of a tube and up into the next adjacent space by partially llin g said next adjacent space, prevent the removal of any of the intermediate tiles of a transverse series from beneath, and therefore should the introduction of the tiles from beneath be compulsory and one of the intermediate tiles of a transverse series be broken all that would be necessary in order to ll up the space formerly occu pied by the broken tile is to slide the longitudinal series of tiles in that space longitudinally and introduce another tile or tiles in front of or behind the longitudinal series and slide them into proper position to fill up the line. So far as the introduction and removal of tiles from above is concerned, such may be done at any place without resort being had to longitudinally sliding a series of tiles.

In the above construction it will be noted that when the tiles are arranged in proper position their body portions entirely fill the j spaces between the tubes, thus forming a compact diaphragm for giving a definite direction to the products of combustion; also, that the lateral projections extending under the surface of the tubes form a protectingcovering therefor. By reason of the coperation of the ends of the lateral projections of the tiles with the body portions of adjacent tiles, one tile serving to lock the next adjacent tile in position, my improved form of tiling can be invertedthat is, so used that the lateral projection C will protect the upper instead of the lower surface of the tubes, if such is desired.

I am aware that minor changes in the arrangement, construction, and combination of several partsof my device can be made and substituted for those herein shown and described without in the least departing from the nature and principle of my invention.

I-Iaving thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. The herein-described tile for boiler-furnaces, comprising a body portion for coperating with a water-tube on one side, and a suitable support on the other side, and a lateral projection embracing said tube and forming a protecting-covering therefor; substantially as described.

2. The herein-described' tile for boiler-furnaces,comprisin g a body portion having overhanging edges by which the same is supported between two water-tubes,and a lateral projection extending from said body portion for embracing one of said tubes; substantially as described.

3. The herein-described tile for boiler-furnaces, comprising a body portion having overhanging upper edges l2 and b', a shoulder D, a recess b", and a curved lateral projection C; substantially as described.

4. The combination with two water-tubes, of a tile comprising a body portion adapted to bridge the space between,and be su pported by, said water-tubes, and a lateral projection extending from said body portion of the tile for embracing one of said water-tubes; substantially as described.

5. The combination with al series of watertubes, of independent tiles coperating therewith, each of said tiles consisting of a body portion bridging the space between, and supported by, two of said tubes, and a lateral projection extending from said body portion around one of said tubes, and coperating with the body portion of an adjacent tile to lock the saine against displacement or removal in one direction; substantially as described.

6. The combination with a series of watertubes, of longitudinal and transverse series of tiles supported by said tubes and forming a protecting-covering therefor, each of said tiles comprising a body portion designed to lIO till the space between two tubes, said body portion being provided with overhanging projections for cooperating With the tubes and supporting the tile therefrom, and curved lateral projections extending from one corner of the body portion and embracing one of said supporting-tubes; substantially as described.

In testimony whereof I hereunto aix my signature, in the presence of tWo Witnesses, 1o this 16th day of September, 1899.

HENRY G. TIDEMANN.

Witnesses:

' WM. H. SCOTT,

A. S. GRAY. 

